A chilly night could see snow grains fall in parts of England.
Snow grains are the solid equivalent of drizzle and look like very small white and opaque grains of ice. They are fairly flat or elongated and are usually less than 1mm across.
They look set to hit southern England overnight which has been dealing with a blanket of cloud and colder air coming up from the near continent, according to meteorologist Kathryn Chalk.
In an online forecast, she said: “It is going to be a cold night underneath this blanket of cloud, temperatures close to freezing, but still mild across Northern Ireland and western parts of Scotland.
We need your consent to load this Social Media content. We use a number of different Social Media outlets to manage extra content that can set cookies on your device and collect data about your activity.
“So if you are up early Sunday morning on your stroll across the south, you may see some drizzle, but also some snow grain being brought up from the English Channel.”
Parts of northern Scotland enjoyed Saturday’s top temperatures at around 12C or 13C while the figures struggled to around 3C or 5C towards the south and eastern England.
Sunday is set to be chilly and there is “a continued risk of drizzle and snow grain in the south where cloud is thick enough”, the Met Office said in its five-day forecast.
It will be cloudy and wet in the far west and the grey, drab coldness of winter will continue into the new week.
Britons can expect “a cloudy outlook through the start of the new working week, with showery rain spreading erratically eastwards” with temperatures generally around average in the north but chilly further south, it said.